Typewriting machine



July A. c. F. KUROWSKI TYPEWRITING MACHINE Filed Sept. 4, I925 5 Sheets-Sheet l mwmari f5; 1 MW July 26, 1927. 1,636,695

A. G. F. KUROWSKI TYPEWRITING MACHINE Filed Sept. 4, 1925 3 Sheets-Sheet 2 Afforne j' Patented July 1.9274 v UNITEDQSTATES PATENT OFFICE.

e. r. xnnowsm, ornaooxnnr, new YORK, assrenon r0 mnawoon 'rnnwnrrnn comm, or NEW YORK, 11. Y., A conromrron or nmwm TYPEWBITING um Application filed September aim; we to. 54,451.

This invention relates to multiple-web typewriting mach'1nes,' and is illustrated herein as ap lied to an Underwood combined typewriting and computing machine. In machines of this character, a composite pack, comprising web-plies interleaved with carbons, is fed downward along a rear papertable, around the platen, and brought up to typing position over a front work-table.

It is also usual in such machines to keep in A place around the platen permanently a record-sheet to accumulatecarbon-copies of all the items which are typed upon successive sections of the web-plies, the typed sections being torn oli one after another upon completion, and a carbon-carr ing frame mount-, ed at the rear ofthe machine is o tions of the web-plies after the platen has been swung to an elevated position above of the platen it is necessary to hold the rec ing the above-noted carbon-stripping operao of. a combined table for guidingthe le d f the ord-sheet against dispalcement, which may result through manipulation of the carbons and web-plies during the stripping operation. I I

One of the features of the present inven-.

tion is the provision [of a clam ing device for-holding the record-sheet stationary durtion. The device is arrangedto automatically clamp the record-sheet under pressure holds the platen in, normal. position within the platencarriage. I

- Another feature ofthe'invention is the ids and paper:

record-sheet upwardly adjacent the rear of the platen, in order to 1properly guide the record-sheet under the camping device and toward the rear of the machine; and prevent any tendency of said record-sheet from winding itself around the platen during the? feeding of the work-plies. J The record-sheet, is introduced into themachine between the usual cutting-ofi knife and the platen,-while 'theplaten is in elevated position, and aiguide' i' s rovided for .directingthe leading edge 4 of t e record-sheet around the laten to meet the combined-paper-g uidean table, which then causes the leadin'gedge to be deflected away from thefplate'n. During thisoper'ationj theJccord-sheet -clamp is' released by erable to strip the carbons from the comp eted .sec-

upon release of the usual fingeriece, which .m swungto elevated osition.

means. of a suitable finger-piece a portion of the clamp. .n

Another feature of the. invention is the provision of a novel tie-bar or bridge-piececonnecting the. usual side lates of the platen-elevating frame. In a dition to rigldly tylng the side plates to ether, the tie- I bar prov des a sup rt for t e front 'worktable, the record gu ding fingers, and the :combined papergu 1de-and,table',.thus all of the combined-and supported as a unit.

parts are eet clamp, record-sheet Other features and advantages will hereinafter appear. v

In the accompanying drawings,

"lo I Figure 1 is a vertical section through the re 2 is a similar view showing the has been elevated being broughtto position against a leading e gage.

'gure 5 is a disassembled view in pers ectlve of. the VallOllS. parts formin a tiear, gmde-fingers, supporting means o ord-sheet clamp, and paper-tables, etc.

Figure 6.is a plan view of the tie-bar and r the rec- I platen, portions being illustratedin section. v

6 Figure 7 is a lan view of the mechanism llustrated in Figure 4, the platen-frame befemn particular y to Fi re l of the drawings, t 0 reference numera 10 indicates a composite pack 'of web-plies and carbons,

the p fed upward from the rear of a combln' typewriting and computing machine 11,- a portion-of the computin mechanism being indicated at C. .The'pac is led forward over the usual track or extension 12 and between side edge guides 13 and thence downward over a rear paper-table 1:1 and around a 'platen;15.to the hue, to receive type-impressions of th upward between a cutting-0E knife '17 and the platen,andthence over a front. paperrinting ,6 types. 16. The leading edges of the pack are ed 7 so I the platen,thereby properlyjdirectmg the co-operate with the webs therearound. ere is provided ,on each of the ends of the platen-shaft 20, a gear 21, which meshes with a wide pinion 22 mounted on a stud-shaft 23 in each of the end frames 24of the. laten-cai'riage 25, the platen being mounts in a swing-frame 26 mcludin a air of end plates 27 pivoted at 28 to eac o the end frames 24 of the platen carriage; Gears not shown) similar to the gears 21 mesh wit each wide inion 22 and each ear is mounted upon a s ort shaft rotatab e in each carriage end and in axial ali ent' withtheqplaten-shaft 20, each of sai shafts being provided with a handwheel (not shown se. that when the platen thereof is'locked in norma position against the feed- .rolls19, each hand wheel may be utilized to rotate the platen through the medium of either pinion 22 and a gear 21. An example of such gearing is illustrated in Patent No. 1,465,789 to H. L. Pit-man, granted Au st 21, 1923. It will be seen upon elevating the platen 15 by raisin frame 26 that each gear 21 w l roll'out of mesh with its pinion 22. A stop 29 adjacent. the pivot'28 of the swing-frame rests upon a portion ofthe machine ll'to determine the elevated position of the platen 'l5.-.

Ian usual incombined typewriting and.

computing machines to type simultaneously with the web-plies a record-sheet-which 1s kept in place around the platen permanently,

that is until, all the available writing area ings the reference numeral 30 indicates such 'recordsheet, which has been led down over the pack 10 around the platen and under the packup to the printing line, and thence deflected rearwardly by means of a guidefinger 31 disposed adjacent the top of the platen. As the leading edge of the recordsheet 30 reaches. the rear end of the guidefinger 31-, it is deflected by a 11p 32 of a curved paper-deflector 33 located between the front paper table 18 "and the reartpaper- -tabl614 Dueto the curvature-of, e deflector 33, the leading edge of the recordshc'et 30vis deflected upwardly away-from sheet toward the rear of the machine and I obviating; any tendenc of said record-sheet from windingaroun the platen. Due to the fact that the swing-frame 26 1s mounted in the platen-carriage 25 only by' individually pivoting the end plates 27 to the end frames 24, it necessary to provide a tie or brace etween the side p ates of said swing-frame. .Forthis urpose, an angle plate 34 extends across t e laten between the end-plates 27. The en s of the angle plate being preferably bent and overlapped upon one another, as indicated at 35, the overlapped portions thus formlng side walls piaten in feeding the the swinghas been exhausted. In the draw-.

for attachment to the end plates 27 of the swing frame 26; The end plates are usually fastened to the'overlapped portions 35 by rivets 36, as will be readily understood upon consideration of Figure 5. It will be seen, the angle plate 34 includes an upwardly directed wall 37 and a rearwardly-extending led e 38, the front paper-table 18 overlying an fastened to the outer face. of said wall 37. Interposed between the angle plate 34 and the front paper-table-18, there is a sec- 0nd angle plate 39 having an upstanding wall 39 and an outwardly extending lip 40,

the li including fingers 41' projecting from.

thee ge thereof and underlying theangle plate 34 at a point adjacent the platen, as clearlyillustrated at Figure 1, the purpose of the fingers '41 being to aid the guide-fin-- ger 31 in directing the leading edge, of the record-sheet 30 to the curved (paper-deflector 33 during feeding of sai which fit snugly against the inner faces of the bent-over portions 35. The plate 42 also includes two outwardly-bent lugs 44 adjacent each end of the plate, the left-handlug record-sheet around the platen. A plate 42 fits against 'theinner face of the wall 37 of the angle .plate 34 and includes out-turned ears 43 preferably-forming a platform upon which the guide-finger 31"is mounted by any suitable means, such as screws 45..

- The paper-deflector 33 includes lugs 46 properly spaced to be received fastened to the lugs 44 of the plate- :42,.flsuch} as by screws 47. The upper, portion ofwthede fiector 33 is braced againstvmovement I by means of straps 48 ad acent both sides of the table, the straps being pr'ovidedTwith fastening feet 49 and securedrespectively'ti;

the suita le fasteners, screws 50 and rivets 51 late 42 and the deflector 33 by any;

being illustrated for this 7 purpose; The

plate 42 preferably has upstanding lugs. 52

to which one of the feet of each strap- '48- is fastened by means of the screws 50. The

the angle plate 34, the plate 42 and the paper-defiector 33, when', all fastened. together, as shown in section in Figure 1,

form a combined tie or strengthening bridge between the side plates of the swing-frame The plates may be all fastened to-. gether by screws 53 as will be readily 1111- derstood by referring especially to Figure 5;

Before elevating the platen to stripthe carbone from typed sections of the work-plies or this purpose a clamppaper-table 18, and the angle plate 39,

and are preferably bent laterally toward one another at 58 and connected acrossthe platen by a bridge-piece or bail 57 secured to the bent portlons of said levers b means of screws 59. Surface-gripping pa s 60 of suitable material, such as rubber are carried by the bail 57. Tension sprin s 61 are effective to cause the levers 54 and t e bail 57 to rock as a unit in a direction to press the gripping members 60 against t e platen and thereby hold the record-sheet against dis placement, when the platen is elevated. The usual hooks 62 for holding the platen-frame in normal position are pivoted at 63 adjacent the rear pa r-table 14, the hooks enaging around pms 65 carried by the swing-- Irame 26, the pins usually comprising antifriction collars 66 suitably mounted on the end plates 27 bymeans of screws 67. A finger-piece 64 controls the hooks 62 and is swingable toward the rear of .the machine against the action \of the usual spring 68' to.

release the pins 165 from the hooks 62, and

thereby permit the swing-frame 26 to throw the platen '15 to an elevated position above the platen-carriage 25.

As it is necessary to hold the record-sheet 30 stationary against displacement prior to elevating the platen, the levers 54 are curved forward, as indicated at 69, and provided adjacent their upper free ends with pins 70,

Y which normally engages the front'edges 71 'of the hooks 62, to hold'the griip ing pads 60 off the platen. It will be rea y seen by swinging the hooks 62 to release position that the front edges 71 will move away from the pin 70, the spring 61 being effective to will be observed t rock the levers 54 to force the pads into gripping engagement with the record-sheet. he platen may then be elevated with the recor beneath the platen, the carbons stripped from the webs and said webs drawn forwardly in the usual manner against a lead' -ed e gage 72 carried u on a staff 73. us it iiat the clamping of the record-sheet 'is entirely automatic in the resplect that the onlyoperation necessary to old said record-sheet stationary is to throw the finger-piece 64 to release ition.

' Attention is directed to Figure? In which the pads 60 have been released by ressure platen and said pads.

applied to a finger-piece 74 carried y each of the levers 54, thereby permitting the record-sheet 30 to be inserted between the With the two wide pinions 22 rotating {about an axis fixed to the side frames 24 it is obvious that, when the fram 26 and platen are swung upwardly about, he pivots 28, a rotary movement between the two .pinions 22 and the platen-gears 21 'will take place The pinions- 22 will either roll out Ofengagement. gears 21 or theplaten-gears-will'ifroll out of "movement 0 the -sheet 30 and the webs 10 straightened with :the stationary platenengagement with the-stationary pinions.v

The present invention is not concerned with frame effects a slight rotation of the platen.

The cohesion between the soft pads and the surface of the record-sheet being greater thanthe' cohesion between the record-sheet and the hard smooth surface of the platen provides that therecord-sheet will be held stationary b the ads during the shifting compan ing rotation of the laten, acci ental or 0!: erwise, during the lifting or rmtorm swing of said platen-frame. ariations may be resorted to within the scope of the invention, and portions of the 1m rovements may be used without others. avmg thus described my invention, I claim: I a Y Y 1. In a multiple-web typewriting machlne, in combination, a revoluble platen, means for elevating the platen that permit work-webs and carbons fed around the platen with a record-sheet, to be straightened prior to effecting relative-shifting between sald work-webs and the carbons, and normally inoperative means automatically the record-sheet to the 2. In a multiple-we aten.

typewriting maaten-frame, or by an acchine, in combination, a revoluble platen,

means for elevating the platen that permitwork-webs and carbons fed around the platen with. a record-sheet, to be straight ened prior to effecting relative shifting between said work-webs and the carbons, and v a normally-inoperative C hesive means automatically released in elevating the platen for holding said record-sheet stationary against the platen.

3. In a multiple-web typewriting machine, in combinati n, a revoluble platen, means for elevating he platen that permit work-webs and carbons fed around the platen with a record-sheet, to be strai htened prior to effecting relative shifting tween said work-webs and the carbons, and a clampingdevice including normally-inoperatlve cohesive endsautomatically released by theinitia'l elevation of the platen to hold the. record-sheet stationary against the platen during the continued elevation of the 4. In- 'a multiple-web ty writing ma chine, in combination, a revo uble platen, a swing-frame for elevating the platen 'tha't permits work-webs and carbons fed around v I laten with a'record-sheet to be straight the en p 'or'to efl'ecting relative shifting'besaid" workwebs and the ccrbons, re-. '9 I leasable means for holding the platen in normal position, and a normally-inoperative record-sheetclamping device automatically releasable when the platen is released to be elevated, whereby the record-sheet is pressed against the platen to hold the record-sheet stationary during the elevation of the platen.

5. In a multiple-web typewriting machine, in combination, a revoluble platen, a swing-frame for elevating the platen that permits work-webs and carbons fed around the laten with a record-sheet to be straightene prior to effecting relative shifting between said work-webs and the carbons, a clamping device including levers pivoted at each side of said frame and a clamping bar joining the levers together, said bar extending longitudinally of the platen and nor- ,mally inoperative, and means to automaticall'y release said bar to press the-recordsheet against the platen and hold the recordhaving I upon one work-sheet to press the sheet ment of the platen.

sheet stationary during theelevating move- 6. In a multiple-web typewriting machine, in combination, a platen, a table at' the delivery side ofthe platen, meansto displace both the platen and table for straightening out continuous work-webs and interleaving carbons prior to stripping the car-' bons from the work-webs, and anormally inoperative clamp mounted upon the table to be'automatically released bythe displace against the platen in such a manner as to prevent displacement ot the web during the carbon-stripping operation.

8. In a multiple-web typewriting machine,v

in combination, a revoluble platen, means for elevating the platen to permit work-webs and carbons fed. around the platen with a record-sheet, to be straightened prior to efiecting relative shifting between said workwebs and the carbons, and clamping means automatically operable to press the recordsheet to the platen at the egiiiningot the platen-elevating operation, and automatically releasing the recordsheet when the platen is restored to normal position. 9. In a multiple-web typewriting machine, in combination, a revoluble, platen,

means for elevating the platen that permit,

work-webs and carbons fed around the platen with a record-sheet, to be strai htened prior to efi'ecting relative shifting etween said work-webs and the carbons, releasable means holding said plated in normal position, a record-sheet-clamping device normally ineffective, and a deflector for guiding the leading edge of saidrecord-sheet under said clamping device and then prevent the recordsheet from winding about the platen, the clamping device being efl'ective to ress the record-sheet against theplaten ad acent to the edge of the deflecton. I

10. In a multiple-web typewriting ma:- chine, in combination, a platen, a table at the delivery side of the platen, means to displace both the platen and table for straighteningf -out continuous work-webs and interleaving carbons prior to stripping the carbons from the work-webs, and a normally inoperative clamp mounted upon the table to be automatically released by the displacement of the platen and table, to press one of thewebs against the platen in such a manner that the line-space position on the web relative to the printing line of the platen will-not be disturbed by the shifting movement of the table nor by any accompanying rotation of I the platen.

11.-Ina multiple-web typewriting ma-' chine, incombination, a: carriage, arevoluble platen, meansfor elevating the platen toper- .mit work-webs and'carbons 'fed around the.

tenedj platen with a record-sheet, to be strai loo prior to .eliecting relative shifting etween I saidwork-webs and the carbons, said e1evating means including end plates'pivoted to the carriage, the platen being mounted for rotation in said end plates, means forse- .curingsa id'jend phtes. together as a unit,

includingl 'a. tie-bar secured to said end plates and extending across the platen, a front work-table fixed to said tie-bar, guide-fingers extending rearwardly adjacent said tie-bar whereby to guide the record-sheet as it is fed around the platen, a combined work-table and guide directing the record-sheet upwardly and away from .the platen and toward the rear of the machine as said record-sheet leaves the guide-fingers, and a clamping device arranged to gripsaid record-sheet against displacement on the platen at the beginning of the platen-elevating operation.

12. In a: multiple-web typewriting ma.-

chine, in combination, a revoluble platen,

means for elevating the platen to permit work-webs and carbons fed around" the platen with a record-sheet to be straightened prior to efi'ecting relative shifting between said work-webs and the carbons, said platenelevating means including side plates in which the platen is journaled, a tie-bar extending across the platen and having the ends thereof fastened to said side plates, a front paper-table secured to said tie-bar, a plurality of paper-fingers carried by said tiebar and extending over the platen, a guiding finger carried by the tie-bar and overlying the platen in conformity to the curvature thereof, whereby to direct the record-sheet to said paper-fingers, a paper-table at the rear of said fingers, said paper-table being curved to direct the record-sheet upwardly and away from the platen as said record-sheet is fed around the platen, beneath the fingers, and a clamping device normally ineffective when the platen is in typing position, said clamping device arranged to clamp the recordsheet against the platen at the beginning of the platen-elevating operation.

13. In a multiple-web typewriting machine, in combination, a carriage, a revoluble platen, a swing-frame for elevating the including side plates and a tie-bar extending across the platen and connecting the sideplates together, a front paper-tableand a rear paper-table carried by the tie-bar, and a plurality of sheet-deflectors fixed to said tiebar and so positioned relatively to the rear paper-table that the latter guides the worksheet upwardly and away from the platen as said work-sheet leaves the deflectors.

16. In a multiple-web typewriting' machine, in combination, a revoluble platen,

means for elevating the platen to permit work-webs and carbons fed around the platen with a record-sheet, to be strai htened prior to efiecting relative shifting etween said work-webs and the ,carbons, a front paper-table, a rear paper-table, and a com bined guide and paper-table intermediate saidfirst-named tables for conve ing the record-sheet upwardly and away rom the platen as the same is fed therearound.

17. In a multiple-web typewriting machine, in combination, a revoluble platen, means for elevating the platen to permit work-webs and carbons fed around the platen with a record-sheet, to be straightened prior to eflecting relative shifting Between said work-webs and the carbons, a front paper-table for supporting the work-webs and carbons, fingers directed rearwardly from said table for guiding the record-sheet toward the rear of the platen, and a curved work-table adjacentlthe ends of said fingers, whereby to direct the record-sheet upwardly and away from the platen as said recordshect moves beyond the control of said fingers.

18. In a multiple-web typewriting machine, in combination, a revoluble platen,

means for elevating the platen to permit work-webs and carbons fed around the platen with a record-sheet, to be strai htened prior to effecting relative shifting between said work-webs and the carbons, a front paper-table for supporting the work-webs and carbons, fingers directed rearwardly from said table for guiding the recordsheet toward the rear of the platen, a curved work-table adjacent the ends of said fingers whereby to direct the record sheet upwardly and away from the platen as said record-sheet moves beyond the control of said fingers, and a clamp for automatically clamping the record-sheet against the platen at the beginning of the platen-' elevating operation.

ALFRED G. F. KUROWSKI. 

